QwikSec

Security Database

CVE

CWE

Training

CVE Database
/

CVE-2026-44292

Back to search

CVE-2026-44292

Published: May 13, 2026

Modified: May 18, 2026

PUBLISHED

CVSS v3.1

5.3

MEDIUM

Description

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated message constructors copied enumerable properties from a provided properties object without filtering the __proto__ key. If an application constructed a message from an attacker-controlled plain object, an own enumerable __proto__ property could alter the prototype of that individual message instance. This vulnerability is fixed in 7.5.6 and 8.0.2.

VendorProductVersions

protobufjs

protobuf.js

affected
< 7.5.6
affected
>= 8.0.0, < 8.0.2

Weaknesses (CWE)

CWE-1321

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

References

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now